A Survey of Investors Finds That 60% Use a Full

Multiple Choice

A survey of investors finds that 60% use a full service brokerage firm to invest in stocks, 30% trade stocks online and 24% do both.The probability that an investor selected at random uses a full service brokerage firm or trades stocks online is ________________________ .
One line space needed

A) 90%
B) 66%
C) 34%
D) 54%
E) 60%